With the price point of the gun I don't think many are going to looking for a new stock. Only way I can see a aftermarket stock working other than synthetic is with a large bedding block. Basically create the internals of action portion of the stock out of aluminum. Then bed that into a wood or laminate stock. Lots of work and expense. Doubt we will see it. Not knocking anyone but I just don't get buying a low price gun then wanting all kinds of accessories for it. In the case of the Ruger it offers nothing that cannot be had in other rifles that are available in a lot more configurations. The Ruger is a great gun. But accept it for what it is a great gun at a great price. Just meant to plane work not be pretty or be a platform to build into something else.
My feeling, too. I am a fan of the Savage Axis (own 2), not because they are the finest or most-customizable, but because they represent a heckuva shooting bargain. Rifles like the American and the Axis are just about as close to a silk purse as they will ever get as-is, bar a bit of action and trigger tuning, so if a silk purse is what you want, get one to begin with. You'll be a lot happier in the end, with a lot more $$$ left in your pocket.